# This is the source.sh script. It is executed by BPM in a temporary directory when compiling a source package
# BPM Expects the source code to be extracted into the automatically created 'source' directory which can be accessed using $BPM_SOURCE
# BPM Expects the output files to be present in the automatically created 'output' directory which can be accessed using $BPM_OUTPUT

DOWNLOAD="https://ffmpeg.org/releases/ffmpeg-${BPM_PKG_VERSION}.tar.xz"
FILENAME="${DOWNLOAD##*/}"

# The prepare function is executed in the root of the temp directory
# This function is used for downloading files and putting them into the correct location
prepare() {
  wget "$DOWNLOAD"
  tar -xvf "$FILENAME" --strip-components=1 -C "$BPM_SOURCE"

  cd "$BPM_SOURCE"
  # Patch from BLFS
  patch -Np1 -i ../chromium-ffmpeg.patch
}

# The build function is executed in the source directory
# This function is used to compile the source code
build() {
  ./configure --prefix=/usr                   \
              --enable-gpl                    \
              --enable-version3               \
              --enable-nonfree                \
              --disable-static                \
              --enable-shared                 \
              --disable-debug                 \
              --enable-libaom                 \
              --enable-libass                 \
              --enable-libfreetype            \
              --enable-libmp3lame             \
              --enable-libopus                \
              --enable-libvorbis              \
              --enable-libvpx                 \
              --enable-libx264                \
              --enable-libx265                \
              --enable-openssl                \
              --disable-vulkan                \
              --ignore-tests=enhanced-flv-av1 \
              --docdir=/usr/share/doc/ffmpeg
  
  make
  make tools/qt-faststart
  make doc/ff{mpeg,play}.1
}

# The package function is executed in the source directory
# This function is used to move the compiled files into the output directory
package() {
  make DESTDIR="$BPM_OUTPUT" install install-man
  
  install -Dvm755 tools/qt-faststart "$BPM_OUTPUT"/usr/bin/qt-faststart
  install -Dm644 "$BPM_SOURCE"/LICENSE.md "$BPM_SOURCE"/COPYING* -t "$BPM_OUTPUT"/usr/share/licenses/ffmpeg/
}